Summerville, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Summerville, a town in Union County, Oregon.
This Afternoon
55°F
Slight Chance Rain Showers
A slight chance of rain showers before 1pm. Mostly cloudy. High near 55, with temperatures falling to around 50 in the afternoon. Northeast wind 3 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
7-day forecast for Summerville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 55°F | Slight Chance Rain Showers | 3 to 14 mph NE | 15% |
| Tonight | 29°F | Patchy Fog | 5 mph N | 2% |
| Wednesday | 57°F | Patchy Freezing Fog then Sunny | 1 mph N | 1% |
| Wednesday Night | 33°F | Patchy Fog | 3 mph SW | 52% |
| Thursday | 53°F | Chance Rain Showers then Partly Sunny | 0 to 5 mph W | 52% |
| Thursday Night | 31°F | Partly Cloudy | 0 to 12 mph SE | 6% |
| Friday | 55°F | Partly Sunny | 8 to 12 mph S | 11% |
| Friday Night | 36°F | Mostly Cloudy | 8 to 16 mph S | 7% |
| Saturday | 61°F | Mostly Sunny | 9 to 22 mph S | 1% |
| Saturday Night | 41°F | Mostly Cloudy | 18 to 26 mph S | 12% |
| Sunday | 59°F | Slight Chance Rain Showers | 2 to 18 mph SW | 15% |
| Sunday Night | 35°F | Mostly Cloudy | 3 mph E | 12% |
| Monday | 59°F | Partly Sunny then Slight Chance Rain Showers | 3 mph SE | 16% |
| Monday Night | 36°F | Slight Chance Rain Showers | 1 to 5 mph S | 16% |
Forecast source: National Weather Service (api.weather.gov) for Summerville (45.490, -118.004). Updated through the day.
Growing snapshot for Summerville
Last spring frost
May 24
First fall frost
Sep 18
Growing season
114 days
Hardiness zone
6b
More local growing data for Summerville: nearby ZIP 97876 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Elgin, Or (5.9 mi from Summerville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.